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United States Patent | 5,720,548 |
Geary | February 24, 1998 |
A fluorescent-lighting adaptor assembly for a fluorescent lamp which has at least one light-emitting tube, a base, and electrical contacts on said base includes an electrical adaptor and a heat sink. The electrical adaptor includes an enclosure and electrical sockets configured to receive the lamp contacts on the enclosure. The enclosure defines at least two housing portions radially separated by at least one window and a ballast in at least one of the housing portions. The heat sink includes a wall surrounding the light-emitting tube, a heat coupling surface of the wall facing the light-emitting tube and configured to couple heat between the light-emitting tube and the wall, and a heat dissipation surface. The heat dissipation surface of the wall is positioned in the window between the enclosure portions and is configured to dissipate heat to the atmosphere.
Inventors: | Geary; Brian P. (Holland, MI) |
Assignee: | Progressive Technology in Lighting, Inc. (Holland, MI) |
Appl. No.: | 557342 |
Filed: | November 14, 1995 |
Current U.S. Class: | 362/260; 313/44; 362/218; 362/294; 362/345; 362/652 |
Intern'l Class: | F21K 002/00 |
Field of Search: | 313/44,46,113,318.01 315/50,56-59,70,71 439/232,236 362/345,218,226,260,293,294 |
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